Kylie Jenner posts makeup-free selfie, actually looks 18!

This might be the most real side we've seen of Kylie Jenner in a long time!

The youngest of the Kardashian-Jenner clan, Kylie is known for posting Snapchats and Instagrams multiple times a day. All of those photos and videos usually feature her covered in a face full of heavy makeup.

That's why it was refreshing to see the 18-year-old TV personality share a makeup-free photo in the wee hours of Saturday morning, just before her big sister, Kim Kardashian, announced the arrival of her baby boy.

But by the afternoon, Kylie was back to her contouring ways, posting a fun snap with everyone's favorite grandma, Internet star Baddie Winkle, and pal Ireland Baldwin.

The ridiculously colorful duo of Baddie and Ireland recently starred in a sex ed video for Galore Magazine. The clip, which was posted Friday, featured more discussion on Red Lobster and Justin Timberlake than anything bedroom-related, however.

Back in September, the Keeping Up With the Kardashians star was spotted at a car dealership in her hometown of Calabasas, California, sans makeup, once again reminding us that she is, in fact, still a teenager.

Kylie's latest selfie came just days after Interview's December/January double issue was released. Kylie is the magazine's very dolled-up cover girl, yet shetold the glossy that if she had her way, she "would probably just never dress up."

"I would never wear makeup, because I honestly hate wearing makeup," she said. "The only thing I really like changing is my hair... I don't really think I would do anything else."

While Kylie hasn't commented on the birth of her newest nephew yet, her older sisters, Khloe and Kourtney Kardashian, have tweeted. Find out what the two had to say about Kimye's second child in the video below.